Non-equilibrium Bose–Einstein condensates (BECs) working at room temperature [1]}, [2]} are systems where open dissipative quantum-mechanical nature meets many-body collective dynamics.
Besides its fundamental theoretical interest, BEC can be used in sub-picosecond switching at the fundamental quantum limit [3]}, all-optical manipulation, and other low-energy optoelectronic applications [4]}, [5]}.
Among the most promising systems for therealization of BEC are exciton-polaritons, the hybrid quasiparticles formed by the strong light–matter interaction of photons in a cavity and excitons, [6]}, [7]}, [8]}, [9]}, [10]}, [11]}, [12]}, [13]}, [14]}, [15]}, [16]}, [5]}, [18]}, [2]}, [1]}.
The advantage of the exciton-polaritons is their small effective mass and low density of states [9]}, [10]}, [14]}, [16]}, that provides a critical temperature of hundreds of kelvin [6]}, [7]}, [1]}.
